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29484990 = 23251971663
BaseRepresentation
bin111000001111…
…0011110111110
32001110222210200
41300132132332
530022004430
62531544330
7505422033
oct160363676
961428720
1029484990
1115709567
129a5b0a6
136154752
143cb738a
1528c6460
hex1c1e7be

29484990 has 48 divisors (see below), whose sum is σ = 77096448. Its totient is φ = 7818048.

The previous prime is 29484989. The next prime is 29484991. The reversal of 29484990 is 9948492.

It is an interprime number because it is at equal distance from previous prime (29484989) and next prime (29484991).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29484991) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16899 + ... + 18561.

It is an arithmetic number, because the mean of its divisors is an integer number (1606176).

Almost surely, 229484990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29484990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38548224).

29484990 is an abundant number, since it is smaller than the sum of its proper divisors (47611458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29484990 is a wasteful number, since it uses less digits than its factorization.

29484990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1873 (or 1870 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 29484990 is about 5430.0082872865. The cubic root of 29484990 is about 308.9349157548.

The spelling of 29484990 in words is "twenty-nine million, four hundred eighty-four thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 197 394 591 985 1182 1663 1773 1970 2955 3326 3546 4989 5910 8315 8865 9978 14967 16630 17730 24945 29934 49890 74835 149670 327611 655222 982833 1638055 1965666 2948499 3276110 4914165 5896998 9828330 14742495 29484990